If the horizontal component of the Earth’s magnetic field is 20 µT and the field produced by the coil of wire is 15 µT, what will be the deflection angle of the compass assuming the two magnetic fields are perpendicular to each other?

The deflection angle of the compass is 37⁰

Explanation:

Given;

Earth’s magnetic field strength, B = 20μT

Magnetic field strength of the coil, B = 15 µT

Substitute the given values in the equation above and calculate the deflection angle of the compass.

Therefore, the deflection angle of the compass assuming the two magnetic fields are perpendicular to each other is 37⁰

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

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